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Hydrocarbons

67 Questions
All Exams NEET AIIMS
2007 NEET MCQ
AIPMT 2007
Which of the compound with molecular formula C5H10 yields acetone on ozonolysis?
A.
3-Methyl- 1 -butene
B.
Cyclopentane
C.
2-Methyl-1-butene
D.
2-Methyl-2-butene
2007 NEET MCQ
AIPMT 2007
Predict the product C obtained in the following reaction of 1-butyne.
AIPMT 2007 Chemistry - Hydrocarbons Question 33 English
A.
AIPMT 2007 Chemistry - Hydrocarbons Question 33 English Option 1
B.
AIPMT 2007 Chemistry - Hydrocarbons Question 33 English Option 2
C.
AIPMT 2007 Chemistry - Hydrocarbons Question 33 English Option 3
D.
AIPMT 2007 Chemistry - Hydrocarbons Question 33 English Option 4
2005 NEET MCQ
AIPMT 2005
Products of the following reaction :
AIPMT 2005 Chemistry - Hydrocarbons Question 30 English
A.
CH3COOH + CO2
B.
CH3COOH + HOOC.CH2CH3
C.
CH3CHO + CH3CH2CHO
D.
CH3COOH + CH3COCH3
2005 NEET MCQ
AIPMT 2005
Which one of the following alkenes will react faster with H2 under catalytic hydrogenation conditions ?
A.
AIPMT 2005 Chemistry - Hydrocarbons Question 31 English Option 1
B.
AIPMT 2005 Chemistry - Hydrocarbons Question 31 English Option 2
C.
AIPMT 2005 Chemistry - Hydrocarbons Question 31 English Option 3
D.
AIPMT 2005 Chemistry - Hydrocarbons Question 31 English Option 4
2004 NEET MCQ
AIPMT 2004
Reaction of HBr with propene in the presence of peroxide gives
A.
isopropyl bromide
B.
3-bromopropane
C.
allyl bromide
D.
n-propyl bromide
2004 NEET MCQ
AIPMT 2004
Using anhydrous AlCl3 as catalyst, which one of the following reactions produces ethylbenzene (PhEt)?
A.
H3C $-$ CH2OH + C6H6
B.
CH3 $-$ CH $=$ CH2 + C6H6
C.
H2C $=$ CH2 + C6H6
D.
H3C $-$ CH3 + C6H6
2003 NEET MCQ
AIPMT 2003
Which one of the following is a free-radical substitution reaction ?
A.
AIPMT 2003 Chemistry - Hydrocarbons Question 26 English Option 1
B.
AIPMT 2003 Chemistry - Hydrocarbons Question 26 English Option 2
C.
AIPMT 2003 Chemistry - Hydrocarbons Question 26 English Option 3
D.
AIPMT 2003 Chemistry - Hydrocarbons Question 26 English Option 4
2003 NEET MCQ
AIPMT 2003
The correct order of reactivity towards the electrophilic substitution of the compounds aniline (I), benzene (II) and nitrobenzene (III) is
A.
III > II > I
B.
II > III > I
C.
I < II > III
D.
I > II > III
2003 NEET MCQ
AIPMT 2003
The compound
AIPMT 2003 Chemistry - Hydrocarbons Question 27 English
on reaction with NaIO4 in the presence of KMnO4 gives
A.
CH3COCH3
B.
CH3COCH3 + CH3COOH
C.
CH3COCH3 + CH3CHO
D.
CH3CHO + CO2
2002 NEET MCQ
AIPMT 2002
When CH3CH2CHCl2 is treated with NaNH2, the product formed is
A.
CH3 $-$ CH $=$ CH2
B.
CH3 $-$ C $ \equiv $ CH
C.
AIPMT 2002 Chemistry - Hydrocarbons Question 24 English Option 3
D.
AIPMT 2002 Chemistry - Hydrocarbons Question 24 English Option 4
2001 NEET MCQ
AIPMT 2001
In preparation of alkene from alcohol using Al2O3 which is the effective factor ?
A.
Porosity of Al2O3
B.
Temperature
C.
Concentration
D.
Surface area of Al2O3
2000 NEET MCQ
AIPMT 2000
Which is maximum stable?
A.
1-Butene
B.
cis-2-Butene
C.
trans-2-Butene
D.
All have same stability.
2000 NEET MCQ
AIPMT 2000
2-Butene shows geometrical isomerism due to
A.
restricted rotation about double bond
B.
free rotation about double bond
C.
free rotation about single bond
D.
chiral carbon
2000 NEET MCQ
AIPMT 2000
Which reagent converts propene to 1-propanol ?
A.
H2O, H2SO4
B.
B2H6, H2O2, OH$-$
C.
Hg(OAc)2, NaBH4/H2O
D.
Aq. KOH
2000 NEET MCQ
AIPMT 2000
Dihedral angle in staggered form of ethane is
A.
0o
B.
12o
C.
60o
D.
180o
2000 NEET MCQ
AIPMT 2000
Increasing order of electrophilic substitution for following compounds
AIPMT 2000 Chemistry - Hydrocarbons Question 22 English
A.
IV < I < II < III
B.
III < II < I < IV
C.
I < IV < III < II
D.
II < III < I < IV
2000 NEET MCQ
AIPMT 2000
In Friedel-Crafts reaction , toluene can be prepared by
A.
C6H6 + CH3Cl
B.
C6H5Cl + CH4
C.
C6H6 + CH2Cl2
D.
C6H6 + CH3COCl